柯林斯词典moult /məʊlt/ (moulting,moulted,moults) 1. V-I When an animal or bird moults, it gradually loses its coat or feathers so that a new coat or feathers can grow. 脱毛; 换羽 Like most aquatic insects, mayflies moult as they grow. 像大多数水生昆虫一样，蜉蝣在成长过程中换羽。 返回 moult剑桥词典(of a bird or animal ) to lose feathers , skin , or hair as a natural process at a particular time of year so that new feathers , skin , or hair can grow （鸟或动物）脱毛；褪皮；换羽 返回 moult